TOI-4311 is 440 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this K star; the first was found in 2026 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DTOI-4311 b goes round its star every 23.8 hours, 89 times as often as Mercury goes round the Sun.
| Spectral type | K |
| Surface temperature | 5,063 K |
| Mass | 0.816 solar masses |
| Radius | 0.8441 solar radii |
| Luminosity | 0.422 times the Sun |
| Apparent magnitude | 11.388 |
| Age | about 6.6 billion years |
| Distance from the Sun | 440.3 light-years (135.0 parsecs) |
| Position (J2000) | RA 41.6855°, Dec -31.1793° |
| Constellation | Fornax |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| TOI-4311 b | 23.8 hours | 0.0182 AU | 1.376 R⊕ | 4.5 M⊕ | Transit, 2026 |
| TOI-4311 c | 15.1 days | 0.112 AU | 2.47 R⊕ | 13.58 M⊕ | Transit, 2026 |
Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.